Enough has been said to show that the opinions which I am advancing are not new, but I have looked in vain for the conclusions which, it appears to me, M. Ribot should draw from his facts; throughout his interesting book I find the facts which it would seem should have guided him to the conclusions, and sometimes almost the conclusions themselves, but he never seems quite to have reached them, nor has he arranged his facts so that others are likely to deduce them, unless they had already arrived at them by another road. I cannot, however, sufficiently express my obligations to M. Ribot.
I cannot refrain from bringing forward a few more instances of what I think must be considered by every reader as hereditary memory. Sydney Smith writes:—
“Sir James Hall hatched some chickens in an oven. Within a few minutes after the shell was broken, a spider was turned loose before this very youthful brood; the destroyer of flies had hardly proceeded more than a few inches, before he was descried by one of these oven-born chickens, and, at one peck of his bill, immediately devoured. This certainly was not imitation. A female goat very near delivery died; Galen cut out the young kid, and placed before it a bundle of hay, a bunch of fruit, and a pan of milk; the young kid smelt to them all very attentively, and then began to lap the milk. This was not imitation. And what is commonly and rightly called instinct, cannot be explained away, under the notion of its being imitation” (Lecture xvii. on Moral Philosophy).
It cannot, indeed, be explained away under the notion of its being imitation, but I think it may well be so under that of its being memory.
Again, a little further on in the same lecture, as that above quoted from, we find:—
“Ants and beavers lay up magazines. Where do they get their knowledge that it will not be so easy to collect food in rainy weather, as it is in summer? Men and women know these things, because their grandpapas and grandmammas have told them so. Ants hatched from the egg artificially, or birds hatched in this manner, have all this knowledge by intuition, without the smallest communication with any of their relations. Now observe what the solitary wasp does; she digs several holes in the sand, in each of which she deposits an egg, though she certainly knows not (?) that an animal is deposited in that egg, and still less that this animal must be nourished with other animals. She collects a few green flies, rolls them up neatly in several parcels (like Bologna sausages), and stuffs one parcel into each hole where an egg is deposited. When the wasp worm is hatched, it finds a store of provision ready made; and what is most curious, the quantity allotted to each is exactly sufficient to support it, till it attains the period of wasphood, and can provide for itself. This instinct of the parent wasp is the more remarkable as it does not feed upon flesh itself. Here the little creature has never seen its parent; for by the time it is born, the parent is always eaten by sparrows; and yet, without the slightest education, or previous experience, it does everything that the parent did before it. Now the objectors to the doctrine of instinct may say what they please, but young tailors have no intuitive method of making pantaloons; a new-born mercer cannot measure diaper; nature teaches a cook’s daughter nothing about sippets. All these things require with us seven years’ apprenticeship; but insects are like Molière’s persons of quality—they know everything (as Molière says), without having learnt anything. ‘Les gens de qualité savent tout, sans avoir rien appris.’”
How completely all difficulty vanishes from the facts so pleasantly told in this passage when we bear in mind the true nature of personal identity, the ordinary working of memory, and the vanishing tendency of consciousness concerning what we know exceedingly well.
My last instance I take from M. Ribot, who writes:—“Gratiolet, in his Anatomie Comparèe du Système Nerveux, states that an old piece of wolf’s skin, with the hair all worn away, when set before a little dog, threw the animal into convulsions of fear by the slight scent attaching to it. The dog had never seen a wolf, and we can only explain this alarm by the hereditary transmission of certain sentiments, coupled with a certain perception of the sense of smell” (“Heredity,” p. 43).
I should prefer to say “we can only explain the alarm by supposing that the smell of the wolf’s skin”—the sense of smell being, as we all know, more powerful to recall the ideas that have been associated with it than any other sense—“brought up the ideas with which it had been associated in the dog’s mind during many previous existences”—he on smelling the wolf’s skin remembering all about wolves perfectly well.